Interface Engineering of SRu-mC3N4 Heterostructures for Enhanced Electrochemical Hydrazine Oxidation Reactions

Hydrazine oxidation in single-atom catalysts (SACs) could exploit the efficiency of metal atom utilization, which is a substitution for noble metal-based electrolysers that results reduced overall cost. A well-established ruthenium single over mesoporous carbon nitride (SRu-mC3N4) catalyst explored electro-oxidation hydrazine as one model reactions direct fuel cell reactions. The electrochemical activity observed with linear sweep voltammetry (LSV) confirmed SRu-mC3N4 shows an ultra-low onset potential 0.88 V vs. RHE, and current density 10 mA/cm2 was 1.19 compared (mC3N4) (1.77 RHE). Electrochemical impedance spectroscopy (EIS) chronoamperometry (i-t) studies on show smaller charge-transfer resistance (RCt) 2950 Ω long-term potential, well stability 50 h 20 mA/cm2, respectively. Herein, efficient enhanced toward HzOR demonstrated from its synergistic platform highly porous C3N4, possessing large independent active sites, improving subsequent large-scale reaction.